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check seed in gui. fixes #622

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This commit is contained in:
ThomasV
2014-04-05 10:34:51 +02:00
parent 38a59c0b37
commit c24482c21a
4 changed files with 63 additions and 29 deletions
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20
lib/bitcoin.py
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@@ -71,7 +71,25 @@ def mnemonic_to_seed(mnemonic, passphrase):
return PBKDF2(mnemonic, 'mnemonic' + passphrase, iterations = PBKDF2_ROUNDS, macmodule = hmac, digestmodule = hashlib.sha512).read(64)
from version import SEED_PREFIX
is_seed = lambda x: hmac_sha_512("Seed version", x).encode('hex')[0:2].startswith(SEED_PREFIX)
is_new_seed = lambda x: hmac_sha_512("Seed version", x).encode('hex')[0:2].startswith(SEED_PREFIX)
def is_old_seed(seed):
import mnemonic
words = seed.strip().split()
try:
mnemonic.mn_decode(words)
uses_electrum_words = True
except Exception:
uses_electrum_words = False
try:
seed.decode('hex')
is_hex = True
except Exception:
is_hex = False
return is_hex or (uses_electrum_words and len(words) == 12)
# pywallet openssl private key implementation